No profile (default benchmark)
Rules and Groups employed by this XCCDF Profile
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SRG-APP-000001-NDM-000200
Group -
AOS must limit the number of concurrent sessions to a maximum of three for each administrator account and/or administrator account type.
Device management includes the ability to control the number of administrators and management sessions that manage a device. Limiting the number of allowed administrators and sessions per administr...Rule Medium Severity -
SRG-APP-000026-NDM-000208
Group -
AOS must automatically audit account creation.
Upon gaining access to a network device, an attacker will often first attempt to create a persistent method of reestablishing access. One way to accomplish this is to create a new account. Noti...Rule Medium Severity -
SRG-APP-000033-NDM-000212
Group -
AOS must be configured to assign appropriate user roles or access levels to authenticated users.
Successful identification and authentication must not automatically give an entity full access to a network device or security domain. The lack of authorization-based access control could result in...Rule High Severity -
SRG-APP-000097-NDM-000227
Group -
AOS must enforce approved authorizations for controlling the flow of management information within the network device based on information flow control policies.
A mechanism to detect and prevent unauthorized communication flow must be configured or provided as part of the system design. If management information flow is not enforced based on approved autho...Rule Medium Severity -
SRG-APP-000065-NDM-000214
Group -
AOS must be configured to enforce the limit of three consecutive invalid login attempts, after which time it must block any login attempt for 15 minutes.
By limiting the number of failed login attempts, the risk of unauthorized system access via user password guessing, otherwise known as brute-forcing, is reduced.Rule Medium Severity -
SRG-APP-000068-NDM-000215
Group -
AOS must display the Standard Mandatory DOD Notice and Consent Banner before granting access to the device.
Display of the DOD-approved use notification before granting access to the network device ensures privacy and security notification verbiage used is consistent with applicable federal laws, Executi...Rule Medium Severity -
SRG-APP-000069-NDM-000216
Group -
AOS must retain the Standard Mandatory DOD Notice and Consent Banner on the screen until the administrator acknowledges the usage conditions and takes explicit actions to log on for further access.
The banner must be acknowledged by the administrator prior to the device allowing the administrator access to the network device. This provides assurance that the administrator has seen the message...Rule Medium Severity -
SRG-APP-000142-NDM-000245
Group -
AOS must be configured to prohibit the use of all unnecessary and/or nonsecure functions, ports, protocols, and/or services.
To prevent unauthorized connection of devices, unauthorized transfer of information, or unauthorized tunneling (i.e., embedding of data types within data types), organizations must disable unused o...Rule High Severity -
SRG-APP-000149-NDM-000247
Group -
AOS must be configured to use DOD public key infrastructure (PKI) as multifactor authentication (MFA) for interactive logins.
MFA is when two or more factors are used to confirm the identity of an individual who is requesting access to digital information resources. Valid factors include something the individual knows (e....Rule High Severity -
SRG-APP-000156-NDM-000250
Group -
AOS must implement replay-resistant authentication mechanisms for network access to privileged accounts.
A replay attack may enable an unauthorized user to gain access to the application. Authentication sessions between the authenticator and the application validating the user credentials must not be ...Rule Medium Severity -
SRG-APP-000164-NDM-000252
Group -
AOS must enforce a minimum 15-character password length.
Password complexity, or strength, is a measure of the effectiveness of a password in resisting attempts at guessing and brute-force attacks. Password length is one factor of several that helps to d...Rule Medium Severity -
SRG-APP-000166-NDM-000254
Group -
AOS must enforce password complexity by requiring that at least one uppercase character be used.
Use of a complex passwords helps to increase the time and resources required to compromise the password. Password complexity, or strength, is a measure of the effectiveness of a password in resisti...Rule Medium Severity -
SRG-APP-000167-NDM-000255
Group -
AOS must enforce password complexity by requiring that at least one lowercase character be used.
Use of a complex password helps to increase the time and resources required to compromise the password. Password complexity, or strength, is a measure of the effectiveness of a password in resistin...Rule Medium Severity -
SRG-APP-000168-NDM-000256
Group -
AOS must enforce password complexity by requiring that at least one numeric character be used.
Use of a complex password helps to increase the time and resources required to compromise the password. Password complexity, or strength, is a measure of the effectiveness of a password in resistin...Rule Medium Severity -
SRG-APP-000169-NDM-000257
Group -
AOS must enforce password complexity by requiring that at least one special character be used.
Use of a complex password helps to increase the time and resources required to compromise the password. Password complexity, or strength, is a measure of the effectiveness of a password in resistin...Rule Medium Severity -
SRG-APP-000172-NDM-000259
Group -
AOS must transmit only encrypted representations of passwords.
Passwords need to be protected at all times, and encryption is the standard method for protecting passwords. If passwords are not encrypted, they can be plainly read (i.e., clear text) and easily c...Rule High Severity -
SRG-APP-000175-NDM-000262
Group -
AOS must be configured to use DOD-approved Online Certificate Status Protocol (OCSP) responders or Certificate Revocation Lists (CRLs) to validate certificates used for public key infrastructure (PKI)-based authentication.
Once issued by a DOD certificate authority (CA), PKI certificates are typically valid for three years or less within the DOD. However, there are many reasons a certificate may become invalid before...Rule High Severity -
SRG-APP-000179-NDM-000265
Group -
AOS must use FIPS 140-2/140-3 approved algorithms for authentication to a cryptographic module.
Unapproved mechanisms that are used for authentication to the cryptographic module are not validated and therefore cannot be relied on to provide confidentiality or integrity, and DOD data may be c...Rule High Severity -
SRG-APP-000190-NDM-000267
Group -
AOS must terminate all network connections associated with a device management session at the end of the session, or the session must be terminated after five minutes of inactivity except to fulfill documented and validated mission requirements.
Terminating an idle session within a short time period reduces the window of opportunity for unauthorized personnel to take control of a management session enabled on the console or console port th...Rule High Severity -
SRG-APP-000329-NDM-000287
Group -
AOS must enforce role-based access control policies over defined subjects and objects.
Organizations can create specific roles based on job functions and the authorizations (i.e., privileges) to perform needed operations on organizational information systems associated with the organ...Rule Medium Severity -
SRG-APP-000343-NDM-000289
Group -
AOS must audit the execution of privileged functions.
Misuse of privileged functions, either intentionally or unintentionally by authorized users, or by unauthorized external entities that have compromised information system accounts, is a serious and...Rule Medium Severity -
SRG-APP-000360-NDM-000295
Group -
AOS must generate an immediate real-time alert of all audit failure events requiring real-time alerts.
It is critical for the appropriate personnel to be aware if a system is at risk of failing to process audit logs as required. Without a real-time alert, security personnel may be unaware of an impe...Rule Medium Severity -
SRG-APP-000373-NDM-000298
Group -
AOS must be configured to synchronize internal information system clocks using redundant authoritative time sources.
The loss of connectivity to a particular authoritative time source will result in the loss of time synchronization (free-run mode) and increasingly inaccurate time stamps on audit events and other ...Rule Medium Severity -
SRG-APP-000374-NDM-000299
Group -
AOS must record time stamps for audit records that can be mapped to Coordinated Universal Time (UTC) or Greenwich Mean Time (GMT).
Alerts provide organizations with urgent messages. Real-time alerts provide these messages immediately (i.e., the time from event detection to alert occurs in seconds or less).Rule Medium Severity -
SRG-APP-000395-NDM-000310
Group -
AOS must be configured to authenticate SNMP messages using a FIPS-validated Keyed-Hash Message Authentication Code (HMAC).
Without authenticating devices, unidentified or unknown devices may be introduced, thereby facilitating malicious activity. Bidirectional authentication provides stronger safeguards to validate the...Rule Medium Severity
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